It looks like Samsung is anxious to remind people that Samsung Pay is going to be ready for action starting next month, because Sprint just started pushing an update to the S6 and S6 Edge that brings just that (and more) to the handsets.

Samsung Pay

Live broadcasting via Yahoo!

High Quality Audio (with Samsung headsets)

UI updates

Bug fixes

Alongside Pay, there's also an option to "live broadcast" via Yahoo, high quality audio with Samsung headsets, some sort of UI update, and of course the always-loved but rarely seen bug fixes.